/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::ORourkeCollisionModel

Description
    Collision model by P.J. O'Rourke.

    Implemented as described in the KIVA manual

\*---------------------------------------------------------------------------*/

#ifndef ORourkeCollisionModel_H
#define ORourkeCollisionModel_H

#include "collisionModel.H"


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

/*---------------------------------------------------------------------------*\
                   Class ORourkeCollisionModel Declaration
\*---------------------------------------------------------------------------*/

class ORourkeCollisionModel
:
    public collisionModel
{

private:

    // Private data

        // Reference to the cell volumes
        const scalarField& vols_;

        dictionary coeffsDict_;
        Switch coalescence_;


public:

    //- Runtime type information
    TypeName("ORourke");


    // Constructors

        //- Construct from components
        ORourkeCollisionModel
        (
            const dictionary& dict,
            spray& sm,
            cachedRandom& rndGen
        );


    //- Destructor
    virtual ~ORourkeCollisionModel();


    // Member Functions

        void collideParcels(const scalar dt) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
